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A246566 as a simple table

na(n)
01
11
22
34
410
524
662
7155
8396
9992
102504
116228
1215512
1338220
1494059
15229498
16558642
171350384
183255138
197801327
2018642118
2144329833
22105111283
23248184255
24584396849
251371048495
263208318247
277483522231
2817413665881
2940405120865
3093543352492

[1,1,2,4,10,24,62,155,396,992,2504,6228,15512,
 38220,94059,229498,558642,1350384,3255138,7801327,
 18642118,44329833,105111283,248184255,584396849,
 1371048495,3208318247,7483522231,17413665881,
 40405120865,93543352492]